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1.56 Finish Photochromic Progressive lens introduces the related knowledge of photochromic lens

1.56 Finish Photochromic Progressive lens introduces the related knowledge of photochromic lens

  • Categories:Industry news
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  • Time of issue:2021-10-26 16:00
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(Summary description)A photochromic lens is a lens that becomes dark when exposed to a certain wavelength of light (usually ultraviolet light). When it is no longer irradiated by this light source, it will return to the original light transmittance and become clear.

1.56 Finish Photochromic Progressive lens introduces the related knowledge of photochromic lens

(Summary description)A photochromic lens is a lens that becomes dark when exposed to a certain wavelength of light (usually ultraviolet light). When it is no longer irradiated by this light source, it will return to the original light transmittance and become clear.

  • Categories:Industry news
  • Author:
  • Origin:
  • Time of issue:2021-10-26 16:00
  • Views:
Information

How much do you know about photochromic lenses? Follow the 1.56 Finish Photochromic Progressive lens editor to have a simple understanding!


A photochromic lens is a lens that becomes dark when exposed to a certain wavelength of light (usually ultraviolet light). When it is no longer irradiated by this light source, it will return to the original light transmittance and become clear. Photochromic lenses can be made of glass or plastics including polycarbonate. The discoloration effect is caused by the silver chloride or other halides added in the lens. Such substances are transparent to visible light when they are not irradiated by ultraviolet light. When they are irradiated by ultraviolet light, they will react chemically. It will absorb part of the visible light and make the lens look darker. This chemical reaction is a reversible reaction, so the lens will return to its original transparent state when it is no longer irradiated by ultraviolet light.
To sum up, the editor of 1.56 Finish Photochromic Progressive lens tells: a brief introduction to the relevant knowledge of photochromic lenses.

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